body {
    margin: 0;
    font-family: "Inter", sans-serif;
    background: #1e1e1e;
    color: #f5f5f5;
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
}

h1,
h2,
h3 {
    font-family: "Playfair Display", serif;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

.header {
    position: fixed;
    width: 100%;
    background: transparent;
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1000;
    top: 0;
}

.header.scrolled {
    background: rgba(40, 40, 40, 0.95);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center; /* INI PENTING */
    padding: 20px 0;
}

.nav h2 {
    margin: 0; /* hapus margin bawaan */
}

.menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    height: 100px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.6));
}

.menu a {
    margin-left: 20px;
    color: #eee;
    font-size: 20px;
    text-decoration: none;
    position: relative;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.menu a::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    background: #b11226;
    left: 0;
    bottom: -5px;
    transition: 0.3s;
}

.menu a:hover {
    color: #ff4d5a;
}

.menu a:hover::after {
    width: 100%;
}

.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    filter: grayscale(20%) contrast(110%);
    object-position: center 10%;
    animation: zoomHero 20s ease-in-out infinite alternate;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3),
        rgba(0, 0, 0, 0.7),
        rgba(177, 18, 38, 0.4)
    );
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    top: 50%;
    transform: translateY(-50%);
    padding: 20px;
}

.hero h1 {
    font-size: 48px;
}

.hero p {
    margin-top: 10px;
    font-size: 18px;
}

@keyframes zoomHero {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.1);
    }
}

button,
.btn,
.menu a {
    min-height: 44px; /* standar mobile */
    display: flex;
    align-items: center;
}

.btn {
    background: #b11226;
    color: white;
    padding: 12px 25px;
    display: inline-block;
    margin-top: 15px;
    text-decoration: none;
    font-weight: 500;
    border-radius: 5px;
    transition: 0.3s;
}

.btn:hover {
    background: #ff2e43;
}

.dark-section {
    background: linear-gradient(135deg, #1e1e1e, #2a2a2a);
    padding: 60px 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: #2a2a2a;
    padding: 20px;
    border-radius: 10px;
    transition: 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-8px);
    border-color: #b11226;
}

.flex {
    display: flex;
    gap: 20px;
    align-items: center;
}

#founder img {
    width: 250px;
}

.highlight {
    background: rgba(177, 18, 38, 0.15);
    color: #fff;
    border: 1px solid rgba(177, 18, 38, 0.3);
}

footer {
    text-align: center;
    padding: 20px;
    background: black;
}

.whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;

    width: 55px;
    height: 55px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #25d366;
    color: white;
    font-size: 24px;

    border-radius: 50%;
    text-decoration: none;

    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(37, 211, 102, 0.4); /* glow hijau */

    transition: all 0.3s ease;
    z-index: 999;
}

/* Hover */
.whatsapp:hover {
    transform: scale(1.12);
    box-shadow:
        0 10px 25px rgba(0, 0, 0, 0.5),
        0 0 25px rgba(37, 211, 102, 0.7);
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: 0.6s;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}